121000000000002 has 32 divisors (see below), whose sum is σ = 242427020157504. Its totient is φ = 40262171673600.

The previous prime is 120999999999941. The next prime is 121000000000007. The reversal of 121000000000002 is 200000000000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 121000000000002.

It is not an unprimeable number, because it can be changed into a prime (121000000000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57290602 + ... + 59365082.

It is an arithmetic number, because the mean of its divisors is an integer number (7575844379922).

Almost surely, 2^{121000000000002} is an apocalyptic number.

121000000000002 is an abundant number, since it is smaller than the sum of its proper divisors (121427020157502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121000000000002 is a wasteful number, since it uses less digits than its factorization.

121000000000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091634.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 121000000000002 its reverse (200000000000121), we get a palindrome (321000000000123).

The spelling of 121000000000002 in words is "one hundred twenty-one trillion, two", and thus it is an aban number.